Spool frame for pile-fabric looms



Feb. 10, 1925. 1,525,811

' H. HUGHES ET AL- L $1 0011 FRAME FOR FILE FABRIC LOOMS Filed June 27, 1925 ("a I I ATTORNEY Patented Feb. 10, 1925.

UNITED! ST ENT F'FICE HARRY nuennshunnownan Mason, or SAXONVILLE, MAssAoiIUsE'r'Ts, Assrenons 'ro -n-oxneny CARPET-1 COMPANY; OF BOSTON, MASSACHUSETTS, A conron-a r roiv oeiitassnonusnmsa SPO DL" FRAME FOR FILE-FABRIC LOOMS.

Application filed 11111627, 1923;. Serial 1%. 648,126.

To all whom it may to'nt'em-i Be it known that we, HARRY Hearings and HOWARD lv' asoir', citizensof the United States, and residents of 'saxoavine, in the county of Middlese-X' and State of Massachusetts, have invented an; Improvement in Spool Frames for Pile Fabric Looms, of which the followingdescription, in connection with the accompanying drawings, is a specification, like characters on the draw- Su'ch" spool frames are usually? provided withyarn guiding. tubes" which present "the efld s of the tuft "forming yainto the weaving'point, and, in order to prevent too free delivery of theyarn oro verriinning,the

tuft yarn carrying spool has heretofore been rovided with-awake 0i -frictional tension device to prevent too free rotation thereof in the-spool frame;

One ofthe objects of the present'inventi'on is to simplify the spool frame and to provide a construction whereby thetuft yarn carryingspools' maybe readi-lyapplied to or di-scharg'ed from the spool frame, and I p p with the present invention; each bracket is when in place shall be subjected to a brake or tens1on1ng device.

In carrying out the objects "of the present invention the usual bar constituting an element of a spool frame is provided with a bracketTat each end of'which the/P1115 or arbor's'of the spool may be supported, and

in order to accurately direct the tuft yarn. carrying spool to its bearings 1n the brackets, a novel form of brake ortensioning device is provided; vMore specifically stated, the brake or tensioning device or plate is attached to the spool frame so that it will bear' upon the heads of-the spool, and such plate is p'rovide'davith a guide way for directing the pin or arbor ofthe spool to the bearing of the supporting bracket.

The various features of the present invention and new construction and combination of parts will best be made clear from the followingdescription and the accompanying "drawings of one good practic'al'form thereof, as will now be described.

In the drawings:

F 1g. 1 is a perspective View of a spool frame containing the present invention;

Fig 2 is an enlargedside elevation at one end of the spool-frame showing: the yielding plate,,bearing for the pin or arbor of the spool and the relation of parts; and' Fig. 3 is a. perspective 'View'of one end of the spool frame showing the inner' face of thefriction plate having" the guideway fordirecting the pin or arbor of'the spool to its full supporting position.

rln aecordanc'ewithithe' present invention the spool framec0mpris s the bar 1 towhich is secured the series of yarn guiding tubes 2 for directing thejyarn from the spool 3 to the weaving point when the spool frame itself is taken from the chain by the usual mechanism "provided in looms of this type to incorp'o'ratethe tuftformingyarn into the fabric being-"woven. The yarn tubes 2 are secureidfto'the bar 1 in any appropriate manner and are arranged in a single row as shown, each tube serving its'purposeof di recti ig. one or more yarnsfro-m the spool n i11gyarn to the weaving point.

At each endof th'e bar l is secured a bracket which primarily serves to support the ends of the spool,1 an'd in'accorc'lancc formed preferably: of a yielding material, such asf met'al, as indicated at 4, and is of plate form. I In the present instance the lower'end portion of the bracket 4 is turned inwardly as at 5. and'is secured to the end' formedof metal and from the upwardly eX-' tending portion thereof is punc'lieda bearm'g (S ha'vmgh seat 7 tor supporting the pin 0 and presenting the end of'th'e tuft'foriu or arbor 8 extending beyond the head 9 of the spool and rigid therewith. From the punched out portion each' bracket extends upwardly as at 10 to form a stop for the usual spring arm 11 which serves as a means for detachably connecting the spool frame to the spool carrying frame. In" the present instance of the invention the spring arm 1.1 is secured to the end of the bar 1 and to the bracket 4 by a screw 12 and passes upwardly through the opening 13 formed by the punched out bearing 6. It may be desirable in some instances to provide each end of the bar 1 with a metal ferrule 14, as is commonly employed in spool carrying frames.

Extending upwardly from the ends of the bar 1 is a brake or friction plate 15 which may be conveniently secured to the brackets l. by screws 16 or other securing means. The plate 15 is of yielding or spring character and normally tends to bear with pressure upon the outer face of the spool end or head 9.

The yielding plate 15 is provided with an opening 17 through which the bearing portion 6 ofthe bracket extends when the yielding plate 15 is displaced outwardly by the pin or arbor of the incoming spool, and the upper wall 18 of the opening 17 is preferably provided with a rounded portion 19 which, when the spool is supported in the bracket bearings, overlies the adjacent end of the spool pin or arbor 8.

In spool frames having yielding bearing plates for exerting a brake tension upon the heads of the spool, much difficulty has been experienced in properly seating the pins or arbors of the spool in the spool supporting bearings because the inner faces of the plates have afforded no means for directing the pin or arbor of the spool to its support ing position.

Another feature of the present invention, therefore, consists in providing the spring plate or brake member with a guideway which may be engaged by the end of the pin or arbor of the spool as it moved to place to guide the pin or arbor to its bearings. In the present instance of the invention the plate 15 may be preferably formed by a channel extending upwardly from the curved wall 19 whch overlies the pin or arbor 8 of the spool when the latter is in the supporting position. The guideway 20, in the present instance, is shown as impressed into the plate 15 and turned outwardly at its upper end, so that when the tuft yarn carrying spool is moved to supporting position, the pin or arbor 8 of the incoming spool will be directed downwardly of the guideway 20 to automatically push outwardly the spring plate 15 from full to dotted line posi tion, Fig. 2, to permit the pin or arbor 8 to move to supporting position, and in such movement to be guided by the directing influence of the guideway.

hen a spool carrying the tuft yarn is placed in the spool frame, and the spring or yielding plate 15 is pushed outwardly by the pin or arbor 8 of the incoming spool, as indicated in Fig. 2, the opening 17 in the plate affords a passageway for the bearing 6 which will extend through the opening to finally receive the pin or arbor 8, whereupon the spring or yielding plate 15 will return to its original position with the face of the plate bearing frictionally upon the adjacent face of the spool head; and the curved portion 19 at the lower end of the guideway 20 overlying the pin or arbor 8, thereby securely maintaining the spool in the supporting portion 6 of the bracket.

The construction described as one good form of the present invention affords means for automatically directing the fixed pins or arbors 8 of the spool to spool supporting position and automaticallylocks the spool in its bearings.

lVhat is claimed is:

1. A spool frame for tuft pile fabric looms, comprising, in combination, a bar, fixed end brackets secured to the opposite end portions of the bar and provided with spool supporting bearings, a spool brake comprising an upwardly extending spring plate secured at each end of the bar for yielding movement relative to the supporting bearing of said end bracket into frictional engagement with the head of a spool supported in said bearings and provided with a guideway for directing the fixed pins or arbors of the spool into the end bearings, and spring arms for connecting the spool frame to a part of the loom.

2. In a spool frame for looms, the combination of a bar having yarn tubes, a bracket secured at each end of the bar and having a portion constituting a spool supporting bearing, and a yielding friction plate at each end of the bar movable relative to said bearing and having an upwardly extending guideway for directing the pins or arbors of the spool into the supporting bearings.

3. In a spool frame for tuft pile fabric looms, the combination of a bar having yarn tubes, a fixed bracket secured at each end of the bar and having an inwardly extended portion constituting a spool supporting bearing, a separate yielding friction plate at the end of the bar having an opening into which the independently supported bearing extends when the plate is outwardly displaced, and a guideway formed in the plate for directing the spool pin or arbor into the spool supporting bearing.

4. In a spool frame for tuft pile fabric looms, the combination of a bar having yarn tubes, a bracket secured to each end of the bar and having an inwardly deflected por- 

